1609 Brenda
| Discovery U–B = 0.390[1] | |
|---|---|
| 10.50[4] · 10.6[1] · 10.61[6][5] · 10.68[3][7] | |
1609 Brenda, provisional designation 1951 NL, is a stony
Johannesburg Observatory in South Africa, and named after his granddaughter, Brenda.[9]
Orbit and classification
The S-type asteroid orbits the Sun in the central main-belt at a distance of 1.9–3.2 AU once every 4 years and 2 months (1,518 days). Its orbit has an eccentricity of 0.25 and an inclination of 19° with respect to the ecliptic.[1] Brenda was first identified as 1925 EA at Simeiz Observatory in 1925. Its observation arc begins 17 years prior to its official discovery observation, with its identification 1934 JB, also made at Simeiz.[9]
Physical characteristics
American astronomer
U=2).[8]
According to the surveys carried out by the Infrared Astronomical Satellite
albedo between 0.115 and 0.133.[4][5][6] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1078 and a diameter of 29.59 kilometers with an absolute magnitude of 10.68.[3]
Naming
This
M.P.C. 3931).[10] Ernest Johnson is also known for the discovery of the periodic comet 48P/Johnson
, using the Franklin-Adams Star Camera.
References
- ^ a b c d e f "JPL Small-Body Database Browser: 1609 Brenda (1951 NL)" (2017-05-05 last obs.). Jet Propulsion Laboratory. Retrieved 5 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e f "LCDB Data for (1609) Brenda". Asteroid Lightcurve Database (LCDB). Retrieved 29 December 2016.
- ^ .
- ^ )
- ^ Bibcode:2004PDSS...12.....T. Retrieved 17 October 2019.
- ^ ISSN 0019-1035. Retrieved 29 December 2016.
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1609) Brenda". Geneva Observatory. Retrieved 29 December 2016.
- ^ a b "1609 Brenda (1951 NL)". Minor Planet Center. Retrieved 29 December 2016.
- ISBN 978-3-642-01964-7.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1609 Brenda at AstDyS-2, Asteroids—Dynamic Site
- 1609 Brenda at the JPL Small-Body Database
